<form action="{'?ukey=search'|set_query_html}" method="get">
{assign var=_str value='search_products'|transcape}
{if !$smarty.const.MOD_REWRITE_SUPPORT}
<input type="hidden" name="ukey" value="search" >
{/if}
<input type="text" id="searchstring" name="searchstring" value='{$searchstring|default:$_str}' title="{'search_products'|transcape}" class="input_message" >
<input type="submit" value="{'btn_find'|transcape}" >
</form>